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1. 发明授权

US4038897A Electronic music system and stringed instrument input device therefor 失效
标题翻译：电子音乐系统和弦乐器输入装置
公开(公告)号：US4038897A
公开(公告)日：1977-08-02
申请号：US621966
申请日：1975-10-14
申请人： Jeffrey J. Murray , Jeffrey L. Bachiochi , Norman L. Milliard
发明人： Jeffrey J. Murray , Jeffrey L. Bachiochi , Norman L. Milliard
IPC分类号： G10H1/18 , G10H5/00 , G10H1/00 , G10H3/00 , G10H3/06
CPC分类号： G10H1/181 , G10H5/002
摘要： An electronic music system includes a voltage controlled tone generator, or synthesizer, and an input device, in the form of a guitar or other fretted stringed instrument and associated electronic circuitry, for sequentially providing voltage signals, selected from a set of discretely different voltage levels each analogously related to a musical tone, for driving the tone generator. Each string-fret pair of the stringed instrument is assigned a given musical tone, preferably in accordance with normal tuning of the instrument, and means are provided for producing a corresponding voltage when a string-fret pair is closed by pressing the string against the fret. When two or more string-fret pairs are simultaneously closed, the output voltage corresponding to the highest frequency musical tone associated with the closed string-fret pairs is produced. In particular, different electrical voltages are applied to the instrument frets so as to apply such voltages to the strings when the strings are pressed into contact with the frets. A multiplexing system repetitively samples the string voltages, adds to each string voltage an offset voltage compensating for the musical intervals between the open strings, and processes the highest summed voltage for output to the tone generator.
摘要翻译：电子音乐系统包括电压控制乐音发生器或合成器，以及输入装置，其形式为吉他或其他微动弦乐器和相关联的电子电路，用于顺序地提供从一组离散不同的电压电平中选择的电压信号每个类似地与音调相关，用于驱动音调发生器。弦乐器的每个弦乐器对被赋予给定的音调，优选地根据乐器的正常调谐，并且提供用于当弦乐器对被关闭时产生相应的电压的装置，。当两个或更多个弦乐器对同时关闭时，产生与闭合弦乐器对相关联的最高频率乐音的输出电压。特别地，不同的电压被施加到仪器的频率上，以便当琴弦被压制成与琴弦接触时，将这种电压施加到弦上。复用系统重复地对字符串电压进行采样，将每个串电压加上补偿开路串之间的音程的偏移电压，并处理最高的和电压以输出到音调发生器。

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